One of my first points of call if I'm stuck for inspiration, or starting a new project is often a museum or gallery - there are hundreds of these however, so it really helps to decide on a topic or a theme that you want to look at, to help you choose somewhere that will interest you, and where to start, once you get there... Whether it is just for fun, or with a particular intention (i.e. designing a new collection or piece of jewellery) - give yourself a starting point...
Museums and galleries are of course all closed as I write this, but that doesn't mean we can't access the treasures they hold - all of the big museums, and a lot of smaller ones too, have online collections that you can browse, or search, and many have additional online resources such as virtual tours, podcasts, or films about different elements of their collections...
For example - Victoria and Albert Museum - https://www.vam.ac.uk/collections?type=featured
Tate Galleries - https://www.tate.org.uk/art
Royal Academy - https://www.royalacademy.org.uk/articles/tag/videos
Natural History Museum - https://www.nhm.ac.uk/discover.html
Museum of Modern Art - MoMA, New York - https://www.moma.org/collection/
Tacoma Museum of Art - http://tacoma.emuseum.com/emuseum/
Van Gogh Museum, Amsterdam - https://www.vangoghmuseum.nl/en/search/collection
Many other places are also offering all sorts of digital options including online performances or question and answer sessions, even tutorials - if there is something that you're interested in - whether it is - it may well be out there waiting for you - whether you're interested in jellyfish, or contemporary dance, Viking long-ships, or Manga cartoons, start searching a few museum collections, and you may be surprised what you can find...